[Xcode] ALWAYS_SEARCH_USER_PATHS is set to YES

[Xcode] ALWAYS_SEARCH_USER_PATHS is set to YES
https://bugs.webkit.org/show_bug.cgi?id=172691

Reviewed by Tim Horton.

* Configurations/Base.xcconfig: Set ALWAYS_SEARCH_USER_PATHS to NO.
Source/JavaScriptCore:

* JavaScriptCore.xcodeproj/project.pbxproj: Added ParseInt.h to the JavaScriptCore target.

Source/WebCore:

* WebCore.xcodeproj/project.pbxproj: Added DateTimeChooser.h, DateTimeChooserClient.h,
  PerformanceMark.h, PerformanceMeasure.h, SVGUnknownElement.h, and MathMLUnknownElement.h
  to the WebCore target.

Source/WebKit2:

* UIProcess/API/C/WKAPICast.h: Moved GTK-only definitions that used WebGrammarDetail.h to
  WKAPICastGtk.h. This had the effect of no longer including APIArray.h from this header.

* UIProcess/API/C/gtk/WKAPICastGtk.h: Moved GTK-only definitions to here.
(WebKit::toAPI):
* UIProcess/WebGrammarDetail.h: Replaced include of APIArray.h with a forward declaration.

* Shared/API/c/WKRenderLayer.cpp:
* Shared/API/c/WKRenderObject.cpp:
* UIProcess/API/C/WKApplicationCacheManager.cpp:
* UIProcess/API/C/WKContext.cpp:
* UIProcess/API/C/WKContextConfigurationRef.cpp:
* UIProcess/API/C/WKCookieManager.cpp:
* UIProcess/API/C/WKKeyValueStorageManager.cpp:
* UIProcess/API/C/WKNotificationManager.cpp:
* UIProcess/API/C/WKOpenPanelResultListener.cpp:
* UIProcess/API/C/WKPageGroup.cpp:
* UIProcess/API/C/WKResourceCacheManager.cpp:
* UIProcess/API/C/WKUserContentControllerRef.cpp:
* UIProcess/API/gtk/WebKitBackForwardList.cpp:
* UIProcess/WebContextMenuListenerProxy.cpp:

  Added #include "APIArray.h" to these files now that WKAPICast.h does not include it.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@217531 268f45cc-cd09-0410-ab3c-d52691b4dbfc